SAFARI

76 486 PL ENGINE P Pre-tension of connecting rod big end bearing shells 0.010/0.040 mm Maximum permissible difference 4.0gms max in weight of connecting rods in one engine Connecting rod big end axial play 0.100-0.400 mm Connecting rod big end clearance 0.035-0.081 mm Small end clearance 0.010-0.021 mm Camshaft journal & bearing bore dimensions : Camshaft bearing Camshaft bearing journal bore journal diameter diameter in cylinder head mm mm Standard 26/26.021 25.960/25.947 Bore dia in 1st 50.00/50.039 mm cap for front oil seals Maximum permissible run 0.025 mm out of cam shaft bearing journal Maximum permissible 0.1/0.3 mm axial play of cam shaft in installed condition Cylinder Head (Dimension) : Permissible unevenness Length wise 0.030mm of cylinder head mating Cross wise 0.015mm surface VALVES : VALVE TIMING At 0.1mm actual lift (i.e. stylus is rested on tappet) INLET OPENS (B.T.D.C) 8 0 INLET CLOSES (A.B.D.C) 39 0 EXHAUST OPENS (B.B.D.C) 43 0 EXHAUST CLOSES (A.T.D.C) 4 0 Valve Dimension (Fig. 185) INLET EXHAUST mm mm V alve head dia 'A' 32.2/31.8 28.2/27.8 V alve seat angle 45 0 + 15 ' 45 0 + 15 ' V alve stem dia 'E' 5.975/5.961 5.959/5.945 with 10 m m (micron) taper M aximum run 0.03 0.03 out of valve face with respect to valve stem V alve seat dia 'C' gaugeø30.6 gaugeø27 V alve seat distance from valve face 'B' 2.1/1.9 2.1/1.9 Valve seat end distance from 2.7/2.3 3.2/2.8 valve face M aximum run out 0.03 0.03 of valve seat with respect to valve stem D istance of valve 0.7/0.95 0.7/0.95 head from cylinder head mating surface with crank case Fig. 185